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-rw-r--r--khtml/rendering/render_line.cpp996
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diff --git a/khtml/rendering/render_line.cpp b/khtml/rendering/render_line.cpp
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--- a/khtml/rendering/render_line.cpp
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-/**
-* This file is part of the html renderer for KDE.
- *
- * Copyright (C) 2003-2006 Apple Computer, Inc.
- * (C) 2006 Germain Garand (germain@ebooksfrance.org)
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public License
- * along with this library; see the file COPYING.LIB. If not, write to
- * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
- * Boston, MA 02110-1301, USA.
- */
-// -------------------------------------------------------------------------
-
-#include <kdebug.h>
-#include <assert.h>
-#include <tqpainter.h>
-#include <kglobal.h>
-
-#include "rendering/render_flow.h"
-#include "rendering/render_text.h"
-#include "rendering/render_table.h"
-#include "rendering/render_inline.h"
-#include "rendering/render_block.h"
-#include "rendering/render_arena.h"
-#include "rendering/render_line.h"
-#include "xml/dom_nodeimpl.h"
-#include "xml/dom_docimpl.h"
-#include "html/html_formimpl.h"
-#include "misc/htmltags.h"
-#include "khtmlview.h"
-
-using namespace DOM;
-using namespace khtml;
-
-#ifndef NDEBUG
-static bool inInlineBoxDetach;
-#endif
-
-class khtml::EllipsisBox : public InlineBox
-{
-public:
- EllipsisBox(RenderObject* obj, const DOM::DOMString& ellipsisStr, InlineFlowBox* p,
- int w, int y, int h, int b, bool firstLine, InlineBox* markupBox)
- :InlineBox(obj), m_str(ellipsisStr) {
- m_parent = p;
- m_width = w;
- m_y = y;
- m_height = h;
- m_baseline = b;
- m_firstLine = firstLine;
- m_constructed = true;
- m_markupBox = markupBox;
- }
-
- void paint(RenderObject::PaintInfo& i, int _tx, int _ty);
- bool nodeAtPoint(RenderObject::NodeInfo& info, int _x, int _y, int _tx, int _ty);
-
-private:
- DOM::DOMString m_str;
- InlineBox* m_markupBox;
-};
-
-void InlineBox::detach(RenderArena* renderArena)
-{
- if (m_parent)
- m_parent->removeFromLine(this);
-#ifndef NDEBUG
- inInlineBoxDetach = true;
-#endif
- delete this;
-#ifndef NDEBUG
- inInlineBoxDetach = false;
-#endif
-
- // Recover the size left there for us by operator delete and free the memory.
- renderArena->free(*(size_t *)this, this);
-}
-
-void* InlineBox::operator new(size_t sz, RenderArena* renderArena) throw()
-{
- return renderArena->allocate(sz);
-}
-
-void InlineBox::operator delete(void* ptr, size_t sz)
-{
- assert(inInlineBoxDetach);
-
- // Stash size where detach can find it.
- *(size_t *)ptr = sz;
-}
-
-static bool needsOutlinePhaseRepaint(RenderObject* o, RenderObject::PaintInfo& i, int tx, int ty) {
- if (o->style()->outlineWidth() <= 0)
- return false;
- TQRect r(tx+o->xPos(),ty+o->yPos(),o->width(),o->height());
- if (r.intersects(i.r))
- return false;
- r.addCoords(-o->style()->outlineSize(),
- -o->style()->outlineSize(),
- o->style()->outlineSize(),
- o->style()->outlineSize());
- if (!r.intersects(i.r))
- return false;
- return true;
-}
-
-void InlineBox::paint(RenderObject::PaintInfo& i, int tx, int ty)
-{
- if ( i.phase == PaintActionOutline && !needsOutlinePhaseRepaint(object(), i, tx, ty) )
- return;
-
- // Paint all phases of replaced elements atomically, as though the replaced element established its
- // own stacking context. (See Appendix E.2, section 6.4 on inline block/table elements in the CSS2.1
- // specification.)
- bool paintSelectionOnly = i.phase == PaintActionSelection;
- RenderObject::PaintInfo info(i.p, i.r, paintSelectionOnly ? i.phase : PaintActionElementBackground);
- object()->paint(info, tx, ty);
- if (!paintSelectionOnly) {
- info.phase = PaintActionChildBackgrounds;
- object()->paint(info, tx, ty);
- info.phase = PaintActionFloat;
- object()->paint(info, tx, ty);
- info.phase = PaintActionForeground;
- object()->paint(info, tx, ty);
- info.phase = PaintActionOutline;
- object()->paint(info, tx, ty);
- }
-}
-
-bool InlineBox::nodeAtPoint(RenderObject::NodeInfo& i, int x, int y, int tx, int ty)
-{
- // Hit test all phases of replaced elements atomically, as though the replaced element established its
- // own stacking context. (See Appendix E.2, section 6.4 on inline block/table elements in the CSS2.1
- // specification.)
- bool inside = false;
- return object()->nodeAtPoint(i, x, y, tx, ty, HitTestAll, inside); // ### port hitTest
-}
-
-RootInlineBox* InlineBox::root()
-{
- if (m_parent)
- return m_parent->root();
- return static_cast<RootInlineBox*>(this);
-}
-
-InlineFlowBox::~InlineFlowBox()
-{
- /* If we're destroyed, set the children free, and break their links */
- while (m_firstChild)
- removeFromLine(m_firstChild);
-}
-
-void InlineFlowBox::removeFromLine(InlineBox *child)
-{
- if (child == m_firstChild) {
- m_firstChild = child->nextOnLine();
- }
- if (child == m_lastChild) {
- m_lastChild = child->prevOnLine();
- }
- if (child->nextOnLine()) {
- child->nextOnLine()->m_prev = child->prevOnLine();
- }
- if (child->prevOnLine()) {
- child->prevOnLine()->m_next = child->nextOnLine();
- }
-
- child->setParent(0);
-}
-
-bool InlineBox::canAccommodateEllipsisBox(bool ltr, int blockEdge, int ellipsisWidth)
-{
- // Non-replaced elements can always accommodate an ellipsis.
- if (!m_object || !m_object->isReplaced())
- return true;
-
- TQRect boxRect(m_x, 0, m_width, 10);
- TQRect ellipsisRect(ltr ? blockEdge - ellipsisWidth : blockEdge, 0, ellipsisWidth, 10);
- return !(boxRect.intersects(ellipsisRect));
-}
-
-int InlineBox::placeEllipsisBox(bool /*ltr*/, int /*blockEdge*/, int /*ellipsisWidth*/, bool&)
-{
- // Use -1 to mean "we didn't set the position."
- return -1;
-}
-
-int InlineFlowBox::marginLeft() const
-{
- if (!includeLeftEdge())
- return 0;
-
- RenderStyle* cstyle = object()->style();
- Length margin = cstyle->marginLeft();
- if (!margin.isVariable())
- return (margin.isFixed() ? margin.value() : object()->marginLeft());
- return 0;
-}
-
-int InlineFlowBox::marginRight() const
-{
- if (!includeRightEdge())
- return 0;
-
- RenderStyle* cstyle = object()->style();
- Length margin = cstyle->marginRight();
- if (!margin.isVariable())
- return (margin.isFixed() ? margin.value() : object()->marginRight());
- return 0;
-}
-
-int InlineFlowBox::marginBorderPaddingLeft() const
-{
- return marginLeft() + borderLeft() + paddingLeft();
-}
-
-int InlineFlowBox::marginBorderPaddingRight() const
-{
- return marginRight() + borderRight() + paddingRight();
-}
-
-int InlineFlowBox::getFlowSpacingWidth() const
-{
- int totWidth = marginBorderPaddingLeft() + marginBorderPaddingRight();
- for (InlineBox* curr = firstChild(); curr; curr = curr->nextOnLine()) {
- if (curr->isInlineFlowBox())
- totWidth += static_cast<InlineFlowBox*>(curr)->getFlowSpacingWidth();
- }
- return totWidth;
-}
-
-bool InlineFlowBox::nextOnLineExists()
-{
- if (!parent())
- return false;
-
- if (nextOnLine())
- return true;
-
- return parent()->nextOnLineExists();
-}
-
-bool InlineFlowBox::prevOnLineExists()
-{
- if (!parent())
- return false;
-
- if (prevOnLine())
- return true;
-
- return parent()->prevOnLineExists();
-}
-
-bool InlineFlowBox::onEndChain(RenderObject* endObject)
-{
- if (!endObject)
- return false;
-
- if (endObject == object())
- return true;
-
- RenderObject* curr = endObject;
- RenderObject* parent = curr->parent();
- while (parent && !parent->isRenderBlock()) {
- if (parent->lastChild() != curr || parent == object())
- return false;
-
- curr = parent;
- parent = curr->parent();
- }
-
- return true;
-}
-
-void InlineFlowBox::determineSpacingForFlowBoxes(bool lastLine, RenderObject* endObject)
-{
- // All boxes start off open. They will not apply any margins/border/padding on
- // any side.
- bool includeLeftEdge = false;
- bool includeRightEdge = false;
-
- RenderFlow* flow = static_cast<RenderFlow*>(object());
-
- if (!flow->firstChild())
- includeLeftEdge = includeRightEdge = true; // Empty inlines never split across lines.
- else if (parent()) { // The root inline box never has borders/margins/padding.
- bool ltr = flow->style()->direction() == LTR;
-
- // Check to see if all initial lines are unconstructed. If so, then
- // we know the inline began on this line.
- if (!flow->firstLineBox()->isConstructed()) {
- if (ltr && flow->firstLineBox() == this)
- includeLeftEdge = true;
- else if (!ltr && flow->lastLineBox() == this)
- includeRightEdge = true;
- }
-
- // In order to determine if the inline ends on this line, we check three things:
- // (1) If we are the last line and we don't have a continuation(), then we can
- // close up.
- // (2) If the last line box for the flow has an object following it on the line (ltr,
- // reverse for rtl), then the inline has closed.
- // (3) The line may end on the inline. If we are the last child (climbing up
- // the end object's chain), then we just closed as well.
- if (!flow->lastLineBox()->isConstructed()) {
- if (ltr) {
- if (!nextLineBox() &&
- ((lastLine && !object()->continuation()) || nextOnLineExists()
- || onEndChain(endObject)))
- includeRightEdge = true;
- }
- else {
- if ((!prevLineBox() || !prevLineBox()->isConstructed()) &&
- ((lastLine && !object()->continuation()) ||
- prevOnLineExists() || onEndChain(endObject)))
- includeLeftEdge = true;
- }
-
- }
- }
-
- setEdges(includeLeftEdge, includeRightEdge);
-
- // Recur into our children.
- for (InlineBox* currChild = firstChild(); currChild; currChild = currChild->nextOnLine()) {
- if (currChild->isInlineFlowBox()) {
- InlineFlowBox* currFlow = static_cast<InlineFlowBox*>(currChild);
- currFlow->determineSpacingForFlowBoxes(lastLine, endObject);
- }
- }
-}
-
-int InlineFlowBox::placeBoxesHorizontally(int x)
-{
- // Set our x position.
- setXPos(x);
-
- int startX = x;
- x += borderLeft() + paddingLeft();
-
- for (InlineBox* curr = firstChild(); curr; curr = curr->nextOnLine()) {
- if (curr->object()->isText()) {
- InlineTextBox* text = static_cast<InlineTextBox*>(curr);
- text->setXPos(x);
- x += curr->width();
- }
- else {
- if (curr->object()->isPositioned()) {
- if (curr->object()->parent()->style()->direction() == LTR)
- curr->setXPos(x);
- else {
- // Our offset that we cache needs to be from the edge of the right border box and
- // not the left border box. We have to subtract |x| from the width of the block
- // (which can be obtained by walking up to the root line box).
- InlineBox* root = this;
- while (!root->isRootInlineBox())
- root = root->parent();
- curr->setXPos(root->object()->width()-x);
- }
- continue; // The positioned object has no effect on the width.
- }
- if (curr->object()->isInlineFlow()) {
- InlineFlowBox* flow = static_cast<InlineFlowBox*>(curr);
- x += flow->marginLeft();
- x = flow->placeBoxesHorizontally(x);
- x += flow->marginRight();
- }
- else {
- x += curr->object()->marginLeft();
- curr->setXPos(x);
- x += curr->width() + curr->object()->marginRight();
- }
- }
- }
-
- x += borderRight() + paddingRight();
- setWidth(x-startX);
- return x;
-}
-
-void InlineFlowBox::verticallyAlignBoxes(int& heightOfBlock)
-{
- int maxPositionTop = 0;
- int maxPositionBottom = 0;
- int maxAscent = 0;
- int maxDescent = 0;
-
- // Figure out if we're in strict mode.
- RenderObject* curr = object();
- while (curr && !curr->element())
- curr = curr->container();
- bool strictMode = (curr && curr->element()->getDocument()->inStrictMode());
-
- computeLogicalBoxHeights(maxPositionTop, maxPositionBottom, maxAscent, maxDescent, strictMode);
-
- if (maxAscent + maxDescent < kMax(maxPositionTop, maxPositionBottom))
- adjustMaxAscentAndDescent(maxAscent, maxDescent, maxPositionTop, maxPositionBottom);
-
- int maxHeight = maxAscent + maxDescent;
- int topPosition = heightOfBlock;
- int bottomPosition = heightOfBlock;
- placeBoxesVertically(heightOfBlock, maxHeight, maxAscent, strictMode, topPosition, bottomPosition);
-
- setOverflowPositions(topPosition, bottomPosition);
-
- // Shrink boxes with no text children in quirks and almost strict mode.
- if (!strictMode)
- shrinkBoxesWithNoTextChildren(topPosition, bottomPosition);
-
- heightOfBlock += maxHeight;
-}
-
-void InlineFlowBox::adjustMaxAscentAndDescent(int& maxAscent, int& maxDescent,
- int maxPositionTop, int maxPositionBottom)
-{
- for (InlineBox* curr = firstChild(); curr; curr = curr->nextOnLine()) {
- // The computed lineheight needs to be extended for the
- // positioned elements
- // see khtmltests/rendering/html_align.html
-
- if (curr->object()->isPositioned())
- continue; // Positioned placeholders don't affect calculations.
- if (curr->yPos() == PositionTop || curr->yPos() == PositionBottom) {
- if (curr->yPos() == PositionTop) {
- if (maxAscent + maxDescent < curr->height())
- maxDescent = curr->height() - maxAscent;
- }
- else {
- if (maxAscent + maxDescent < curr->height())
- maxAscent = curr->height() - maxDescent;
- }
-
- if ( maxAscent + maxDescent >= kMax( maxPositionTop, maxPositionBottom ) )
- break;
- }
-
- if (curr->isInlineFlowBox())
- static_cast<InlineFlowBox*>(curr)->adjustMaxAscentAndDescent(maxAscent, maxDescent, maxPositionTop, maxPositionBottom);
- }
-}
-
-void InlineFlowBox::computeLogicalBoxHeights(int& maxPositionTop, int& maxPositionBottom,
- int& maxAscent, int& maxDescent, bool strictMode)
-{
- if (isRootInlineBox()) {
- // Examine our root box.
- setHeight(object()->lineHeight(m_firstLine));
- bool isTableCell = object()->isTableCell();
- if (isTableCell) {
- RenderTableCell* tableCell = static_cast<RenderTableCell*>(object());
- setBaseline(tableCell->RenderBlock::baselinePosition(m_firstLine));
- }
- else
- setBaseline(object()->baselinePosition(m_firstLine));
- if (hasTextChildren() || strictMode) {
- int ascent = baseline();
- int descent = height() - ascent;
- if (maxAscent < ascent)
- maxAscent = ascent;
- if (maxDescent < descent)
- maxDescent = descent;
- }
- }
-
- for (InlineBox* curr = firstChild(); curr; curr = curr->nextOnLine()) {
- if (curr->object()->isPositioned())
- continue; // Positioned placeholders don't affect calculations.
-
- curr->setHeight(curr->object()->lineHeight(m_firstLine));
- curr->setBaseline(curr->object()->baselinePosition(m_firstLine));
- curr->setYPos(curr->object()->verticalPositionHint(m_firstLine));
- if (curr->yPos() == PositionTop) {
- if (maxPositionTop < curr->height())
- maxPositionTop = curr->height();
- }
- else if (curr->yPos() == PositionBottom) {
- if (maxPositionBottom < curr->height())
- maxPositionBottom = curr->height();
- }
- else if (curr->hasTextChildren() || strictMode) {
- int ascent = curr->baseline() - curr->yPos();
- int descent = curr->height() - ascent;
- if (maxAscent < ascent)
- maxAscent = ascent;
- if (maxDescent < descent)
- maxDescent = descent;
- }
-
- if (curr->isInlineFlowBox())
- static_cast<InlineFlowBox*>(curr)->computeLogicalBoxHeights(maxPositionTop, maxPositionBottom, maxAscent, maxDescent, strictMode);
- }
-}
-
-void InlineFlowBox::placeBoxesVertically(int y, int maxHeight, int maxAscent, bool strictMode,
- int& topPosition, int& bottomPosition)
-{
- if (isRootInlineBox()) {
- setYPos(y + maxAscent - baseline());// Place our root box.
- // CSS2: 10.8.1 - line-height on the block level element specifies the *minimum*
- // height of the generated line box
- if (hasTextChildren() && maxHeight < object()->lineHeight(m_firstLine))
- maxHeight = object()->lineHeight(m_firstLine);
- }
-
- for (InlineBox* curr = firstChild(); curr; curr = curr->nextOnLine()) {
- if (curr->object()->isPositioned())
- continue; // Positioned placeholders don't affect calculations.
-
- // Adjust boxes to use their real box y/height and not the logical height (as dictated by
- // line-height).
- if (curr->isInlineFlowBox())
- static_cast<InlineFlowBox*>(curr)->placeBoxesVertically(y, maxHeight, maxAscent, strictMode,
- topPosition, bottomPosition);
-
- bool childAffectsTopBottomPos = true;
-
- if (curr->yPos() == PositionTop)
- curr->setYPos(y);
- else if (curr->yPos() == PositionBottom)
- curr->setYPos(y + maxHeight - curr->height());
- else {
- if (!strictMode && !curr->hasTextDescendant())
- childAffectsTopBottomPos = false;
- curr->setYPos(curr->yPos() + y + maxAscent - curr->baseline());
- }
- int newY = curr->yPos();
- int newHeight = curr->height();
- int newBaseline = curr->baseline();
- int overflowTop = 0;
- int overflowBottom = 0;
- if (curr->isInlineTextBox() || curr->isInlineFlowBox()) {
- const TQFontMetrics &fm = curr->object()->fontMetrics( m_firstLine );
-#ifdef APPLE_CHANGES
- newBaseline = fm.ascent();
- newY += curr->baseline() - newBaseline;
- newHeight = newBaseline+fm.descent();
-#else
- // only adjust if the leading delta is superior to the font's natural leading
- if ( kAbs(fm.ascent() - curr->baseline()) > fm.leading()/2 ) {
- int ascent = fm.ascent()+fm.leading()/2;
- newBaseline = ascent;
- newY += curr->baseline() - newBaseline;
- newHeight = fm.lineSpacing();
- }
-#endif
- for (ShadowData* shadow = curr->object()->style()->textShadow(); shadow; shadow = shadow->next) {
- overflowTop = kMin(overflowTop, shadow->y - shadow->blur);
- overflowBottom = kMax(overflowBottom, shadow->y + shadow->blur);
- }
- if (curr->isInlineFlowBox()) {
- newHeight += curr->object()->borderTop() + curr->object()->paddingTop() +
- curr->object()->borderBottom() + curr->object()->paddingBottom();
- newY -= curr->object()->borderTop() + curr->object()->paddingTop();
- newBaseline += curr->object()->borderTop() + curr->object()->paddingTop();
- }
- } else {
- newY += curr->object()->marginTop();
- newHeight = curr->height() - (curr->object()->marginTop() + curr->object()->marginBottom());
- overflowTop = curr->object()->overflowTop();
- overflowBottom = curr->object()->overflowHeight() - newHeight;
- }
- curr->setYPos(newY);
- curr->setHeight(newHeight);
- curr->setBaseline(newBaseline);
-
- if (childAffectsTopBottomPos) {
- topPosition = kMin(topPosition, newY + overflowTop);
- bottomPosition = kMax(bottomPosition, newY + newHeight + overflowBottom);
- }
- }
-
- if (isRootInlineBox()) {
- const TQFontMetrics &fm = object()->fontMetrics( m_firstLine );
-#ifdef APPLE_CHANGES
- setHeight(fm.ascent()+fm.descent());
- setYPos(yPos() + baseline() - fm.ascent());
- setBaseline(fm.ascent());
-#else
- if ( kAbs(fm.ascent() - baseline()) > fm.leading()/2 ) {
- int ascent = fm.ascent()+fm.leading()/2;
- setHeight(fm.lineSpacing());
- setYPos(yPos() + baseline() - ascent);
- setBaseline(ascent);
- }
-#endif
- if (hasTextDescendant() || strictMode) {
- if (yPos() < topPosition)
- topPosition = yPos();
- if (yPos() + height() > bottomPosition)
- bottomPosition = yPos() + height();
- }
- }
-}
-
-void InlineFlowBox::shrinkBoxesWithNoTextChildren(int topPos, int bottomPos)
-{
- // First shrink our kids.
- for (InlineBox* curr = firstChild(); curr; curr = curr->nextOnLine()) {
- if (curr->object()->isPositioned())
- continue; // Positioned placeholders don't affect calculations.
-
- if (curr->isInlineFlowBox())
- static_cast<InlineFlowBox*>(curr)->shrinkBoxesWithNoTextChildren(topPos, bottomPos);
- }
-
- // See if we have text children. If not, then we need to shrink ourselves to fit on the line.
- if (!hasTextDescendant()) {
- if (yPos() < topPos)
- setYPos(topPos);
- if (yPos() + height() > bottomPos)
- setHeight(bottomPos - yPos());
- if (baseline() > height())
- setBaseline(height());
- }
-}
-
-bool InlineFlowBox::nodeAtPoint(RenderObject::NodeInfo& i, int x, int y, int tx, int ty)
-{
- // Check children first.
- for (InlineBox* curr = lastChild(); curr; curr = curr->prevOnLine()) {
- if (!curr->object()->layer() && curr->nodeAtPoint(i, x, y, tx, ty)) {
- object()->setInnerNode(i);
- return true;
- }
- }
-
- // Now check ourselves.
- TQRect rect(tx + m_x, ty + m_y, m_width, m_height);
- if (object()->style()->visibility() == VISIBLE && rect.contains(x, y)) {
- object()->setInnerNode(i);
- return true;
- }
-
- return false;
-}
-
-
-void InlineFlowBox::paint(RenderObject::PaintInfo& i, int tx, int ty)
-{
- bool intersectsDamageRect = true;
- int xPos = tx + m_x - object()->maximalOutlineSize(i.phase);
- int w = width() + 2 * object()->maximalOutlineSize(i.phase);
- if ((xPos >= i.r.x() + i.r.width()) || (xPos + w <= i.r.x()))
- intersectsDamageRect = false;
-
- if (intersectsDamageRect) {
- if (i.phase == PaintActionOutline) {
- // Add ourselves to the paint info struct's list of inlines that need to paint their
- // outlines.
- if (object()->style()->visibility() == VISIBLE && object()->style()->outlineWidth() > 0 &&
- !object()->isInlineContinuation() && !isRootInlineBox()) {
- if (!i.outlineObjects)
- i.outlineObjects = new TQValueList<RenderFlow*>;
- i.outlineObjects->append(static_cast<RenderFlow*>(object()));
- }
- }
- else {
- // 1. Paint our background and border.
- paintBackgroundAndBorder(i, tx, ty);
-
- // 2. Paint our underline and overline.
- paintDecorations(i, tx, ty, false);
- }
- }
-
- // 3. Paint our children.
- for (InlineBox* curr = firstChild(); curr; curr = curr->nextOnLine()) {
- if (!curr->object()->layer())
- curr->paint(i, tx, ty);
- }
-
- // 4. Paint our strike-through
- if (intersectsDamageRect && i.phase != PaintActionOutline)
- paintDecorations(i, tx, ty, true);
-}
-
-
-void InlineFlowBox::paintBackgrounds(TQPainter* p, const TQColor& c, const BackgroundLayer* bgLayer,
- int my, int mh, int _tx, int _ty, int w, int h)
-{
- if (!bgLayer)
- return;
- paintBackgrounds(p, c, bgLayer->next(), my, mh, _tx, _ty, w, h);
- paintBackground(p, c, bgLayer, my, mh, _tx, _ty, w, h);
-}
-
-void InlineFlowBox::paintBackground(TQPainter* p, const TQColor& c, const BackgroundLayer* bgLayer,
- int my, int mh, int _tx, int _ty, int w, int h)
-{
- CachedImage* bg = bgLayer->backgroundImage();
- bool hasBackgroundImage = bg && (bg->pixmap_size() == bg->valid_rect().size()) &&
- !bg->isTransparent() && !bg->isErrorImage();
- if (!hasBackgroundImage || (!prevLineBox() && !nextLineBox()) || !parent())
- object()->paintBackgroundExtended(p, c, bgLayer, my, mh, _tx, _ty, w, h, borderLeft(), borderRight(), paddingLeft(), paddingRight());
- else {
- // We have a background image that spans multiple lines.
- // We need to adjust _tx and _ty by the width of all previous lines.
- // Think of background painting on inlines as though you had one long line, a single continuous
- // strip. Even though that strip has been broken up across multiple lines, you still paint it
- // as though you had one single line. This means each line has to pick up the background where
- // the previous line left off.
- // FIXME: What the heck do we do with RTL here? The math we're using is obviously not right,
- // but it isn't even clear how this should work at all.
- int xOffsetOnLine = 0;
- for (InlineRunBox* curr = prevLineBox(); curr; curr = curr->prevLineBox())
- xOffsetOnLine += curr->width();
- int startX = _tx - xOffsetOnLine;
- int totalWidth = xOffsetOnLine;
- for (InlineRunBox* curr = this; curr; curr = curr->nextLineBox())
- totalWidth += curr->width();
- p->save();
- p->setClipRect(TQRect(_tx, _ty, width(), height()), TQPainter::CoordPainter);
- object()->paintBackgroundExtended(p, c, bgLayer, my, mh, startX, _ty,
- totalWidth, h, borderLeft(), borderRight(), paddingLeft(), paddingRight());
- p->restore();
- }
-}
-
-void InlineFlowBox::paintBackgroundAndBorder(RenderObject::PaintInfo& pI, int _tx, int _ty)
-{
- if (object()->style()->visibility() != VISIBLE || pI.phase != PaintActionForeground)
- return;
-
- // Move x/y to our coordinates.
- _tx += m_x;
- _ty += m_y;
-
- int w = width();
- int h = height();
-
- int my = kMax(_ty, pI.r.y());
- int mh;
- if (_ty<pI.r.y())
- mh= kMax(0,h-(pI.r.y()-_ty));
- else
- mh = kMin(pI.r.height(),h);
-
- // You can use p::first-line to specify a background. If so, the root line boxes for
- // a line may actually have to paint a background.
- RenderStyle* styleToUse = object()->style(m_firstLine);
- if ((!parent() && m_firstLine && styleToUse != object()->style()) ||
- (parent() && object()->shouldPaintBackgroundOrBorder())) {
- TQColor c = styleToUse->backgroundColor();
- paintBackgrounds(pI.p, c, styleToUse->backgroundLayers(), my, mh, _tx, _ty, w, h);
-
- // :first-line cannot be used to put borders on a line. Always paint borders with our
- // non-first-line style.
- if (parent() && object()->style()->hasBorder())
- object()->paintBorder(pI.p, _tx, _ty, w, h, object()->style(), includeLeftEdge(), includeRightEdge());
- }
-}
-
-static bool shouldDrawDecoration(RenderObject* obj)
-{
- bool shouldDraw = false;
- for (RenderObject* curr = obj->firstChild();
- curr; curr = curr->nextSibling()) {
- if (curr->isInlineFlow()) {
- shouldDraw = true;
- break;
- }
- else if (curr->isText() && !curr->isBR() && (curr->style()->preserveWS() ||
- !curr->element() || !curr->element()->containsOnlyWhitespace())) {
- shouldDraw = true;
- break;
- }
- }
- return shouldDraw;
-}
-
-void InlineFlowBox::paintDecorations(RenderObject::PaintInfo& pI, int _tx, int _ty, bool paintedChildren)
-{
- // Now paint our text decorations. We only do this if we aren't in quirks mode (i.e., in
- // almost-strict mode or strict mode).
- if (object()->style()->htmlHacks() || object()->style()->visibility() != VISIBLE)
- return;
-
- _tx += m_x;
- _ty += m_y;
- RenderStyle* styleToUse = object()->style(m_firstLine);
- int deco = parent() ? styleToUse->textDecoration() : styleToUse->textDecorationsInEffect();
- if (deco != TDNONE &&
- ((!paintedChildren && ((deco & UNDERLINE) || (deco & OVERLINE))) || (paintedChildren && (deco & LINE_THROUGH))) &&
- shouldDrawDecoration(object())) {
- // We must have child boxes and have decorations defined.
- _tx += borderLeft() + paddingLeft();
- int w = m_width - (borderLeft() + paddingLeft() + borderRight() + paddingRight());
- if ( !w )
- return;
- const TQFontMetrics &fm = object()->fontMetrics( m_firstLine );
- // thick lines on small fonts look ugly
- int thickness = fm.height() > 20 ? fm.lineWidth() : 1;
- TQColor underline, overline, linethrough;
- underline = overline = linethrough = styleToUse->color();
- if (!parent())
- object()->getTextDecorationColors(deco, underline, overline, linethrough);
-
- if (styleToUse->font() != pI.p->font())
- pI.p->setFont(styleToUse->font());
-
- if (deco & UNDERLINE && !paintedChildren) {
- int underlineOffset = ( fm.height() + m_baseline ) / 2;
- if (underlineOffset <= m_baseline) underlineOffset = m_baseline+1;
-
- pI.p->fillRect(_tx, _ty + underlineOffset, w, thickness, underline );
- }
- if (deco & OVERLINE && !paintedChildren) {
- pI.p->fillRect(_tx, _ty, w, thickness, overline );
- }
- if (deco & LINE_THROUGH && paintedChildren) {
- pI.p->fillRect(_tx, _ty + 2*m_baseline/3, w, thickness, linethrough );
- }
- }
-}
-
-bool InlineFlowBox::canAccommodateEllipsisBox(bool ltr, int blockEdge, int ellipsisWidth)
-{
- for (InlineBox *box = firstChild(); box; box = box->nextOnLine()) {
- if (!box->canAccommodateEllipsisBox(ltr, blockEdge, ellipsisWidth))
- return false;
- }
- return true;
-}
-
-int InlineFlowBox::placeEllipsisBox(bool ltr, int blockEdge, int ellipsisWidth, bool& foundBox)
-{
- int result = -1;
- for (InlineBox *box = firstChild(); box; box = box->nextOnLine()) {
- int currResult = box->placeEllipsisBox(ltr, blockEdge, ellipsisWidth, foundBox);
- if (currResult != -1 && result == -1)
- result = currResult;
- }
- return result;
-}
-
-void InlineFlowBox::clearTruncation()
-{
- for (InlineBox *box = firstChild(); box; box = box->nextOnLine())
- box->clearTruncation();
-}
-
-void EllipsisBox::paint(RenderObject::PaintInfo& i, int _tx, int _ty)
-{
- TQPainter* p = i.p;
- RenderStyle* _style = m_firstLine ? m_object->style(true) : m_object->style();
- if (_style->font() != p->font())
- p->setFont(_style->font());
-
- const Font* font = &_style->htmlFont();
- TQColor textColor = _style->color();
- if (textColor != p->pen().color())
- p->setPen(textColor);
- /*
- bool setShadow = false;
- if (_style->textShadow()) {
- p->setShadow(_style->textShadow()->x, _style->textShadow()->y,
- _style->textShadow()->blur, _style->textShadow()->color);
- setShadow = true;
- }*/
-
- const DOMString& str = m_str.string();
- font->drawText(p, m_x + _tx,
- m_y + _ty + m_baseline,
- (str.implementation())->s,
- str.length(), 0, str.length(),
- 0,
- TQPainter::LTR, _style->visuallyOrdered());
-
- /*
- if (setShadow)
- p->clearShadow();
- */
-
- if (m_markupBox) {
- // Paint the markup box
- _tx += m_x + m_width - m_markupBox->xPos();
- _ty += m_y + m_baseline - (m_markupBox->yPos() + m_markupBox->baseline());
- m_markupBox->object()->paint(i, _tx, _ty);
- }
-}
-
-bool EllipsisBox::nodeAtPoint(RenderObject::NodeInfo& info, int _x, int _y, int _tx, int _ty)
-{
- // Hit test the markup box.
- if (m_markupBox) {
- _tx += m_x + m_width - m_markupBox->xPos();
- _ty += m_y + m_baseline - (m_markupBox->yPos() + m_markupBox->baseline());
- if (m_markupBox->nodeAtPoint(info, _x, _y, _tx, _ty)) {
- object()->setInnerNode(info);
- return true;
- }
- }
-
- TQRect rect(_tx + m_x, _ty + m_y, m_width, m_height);
- if (object()->style()->visibility() == VISIBLE && rect.contains(_x, _y)) {
- object()->setInnerNode(info);
- return true;
- }
- return false;
-}
-
-void RootInlineBox::detach(RenderArena* arena)
-{
- detachEllipsisBox(arena);
- InlineFlowBox::detach(arena);
-}
-
-void RootInlineBox::detachEllipsisBox(RenderArena* arena)
-{
- if (m_ellipsisBox) {
- m_ellipsisBox->detach(arena);
- m_ellipsisBox = 0;
- }
-}
-
-void RootInlineBox::clearTruncation()
-{
- if (m_ellipsisBox) {
- detachEllipsisBox(m_object->renderArena());
- InlineFlowBox::clearTruncation();
- }
-}
-
-bool RootInlineBox::canAccommodateEllipsis(bool ltr, int blockEdge, int lineBoxEdge, int ellipsisWidth)
-{
- // First sanity-check the unoverflowed width of the whole line to see if there is sufficient room.
- int delta = ltr ? lineBoxEdge - blockEdge : blockEdge - lineBoxEdge;
- if (width() - delta < ellipsisWidth)
- return false;
-
- // Next iterate over all the line boxes on the line. If we find a replaced element that intersects
- // then we refuse to accommodate the ellipsis. Otherwise we're ok.
- return InlineFlowBox::canAccommodateEllipsisBox(ltr, blockEdge, ellipsisWidth);
-}
-
-void RootInlineBox::placeEllipsis(const DOMString& ellipsisStr, bool ltr, int blockEdge, int ellipsisWidth, InlineBox* markupBox)
-{
- // Create an ellipsis box.
- m_ellipsisBox = new (m_object->renderArena()) EllipsisBox(m_object, ellipsisStr, this,
- ellipsisWidth - (markupBox ? markupBox->width() : 0),
- yPos(), height(), baseline(), !prevRootBox(),
- markupBox);
-
- if (ltr && (xPos() + width() + ellipsisWidth) <= blockEdge) {
- m_ellipsisBox->m_x = xPos() + width();
- return;
- }
-
- // Now attempt to find the nearest glyph horizontally and place just to the right (or left in RTL)
- // of that glyph. Mark all of the objects that intersect the ellipsis box as not painting (as being
- // truncated).
- bool foundBox = false;
- m_ellipsisBox->m_x = placeEllipsisBox(ltr, blockEdge, ellipsisWidth, foundBox);
-}
-
-int RootInlineBox::placeEllipsisBox(bool ltr, int blockEdge, int ellipsisWidth, bool& foundBox)
-{
- int result = InlineFlowBox::placeEllipsisBox(ltr, blockEdge, ellipsisWidth, foundBox);
- if (result == -1)
- result = ltr ? blockEdge - ellipsisWidth : blockEdge;
- return result;
-}
-
-void RootInlineBox::paintEllipsisBox(RenderObject::PaintInfo& i, int _tx, int _ty) const
-{
- if (m_ellipsisBox)
- m_ellipsisBox->paint(i, _tx, _ty);
-}
-
-void RootInlineBox::paint(RenderObject::PaintInfo& i, int tx, int ty)
-{
- InlineFlowBox::paint(i, tx, ty);
- paintEllipsisBox(i, tx, ty);
-}
-
-bool RootInlineBox::nodeAtPoint(RenderObject::NodeInfo& i, int x, int y, int tx, int ty)
-{
- if (m_ellipsisBox && object()->style()->visibility() == VISIBLE) {
- if (m_ellipsisBox->nodeAtPoint(i, x, y, tx, ty)) {
- object()->setInnerNode(i);
- return true;
- }
- }
- return InlineFlowBox::nodeAtPoint(i, x, y, tx, ty);
-}
-